Results 11 to 20 of about 37,276 (209)

Porous Materials Confining Single Atoms for Catalysis [PDF]

open access: yesFrontiers in Chemistry, 2021
In recent years, single-atom catalysts (SACs) have received extensive attention due to their unique structure and excellent performance. Currently, a variety of porous materials are used as confined single-atom catalysts, such as zeolites, metal-organic frameworks (MOFs), or carbon nitride (CN).
Tao Zhu   +6 more
openaire   +4 more sources

Microscale whispering-gallery-mode light sources with lattice-confined atoms. [PDF]

open access: yesSci Rep, 2021
Microlasers, relying on the strong coupling between active particles and optical microcavity, exhibit fundamental differences from conventional lasers, such as multi-threshold/thresholdless behavior and nonclassical photon emission.
Yu D, Vollmer F.
europepmc   +2 more sources

Electronegativity under Confinement

open access: yesMolecules, 2021
The electronegativity concept was first formulated by Pauling in the first half of the 20th century to explain quantitatively the properties of chemical bonds between different types of atoms. Today, it is widely known that, in high-pressure regimes, the
Andrés Robles-Navarro   +2 more
doaj   +1 more source

Temporal Response of Atoms Trapped in an Optical Dipole Trap: A Primer on Quantum Computing Speed

open access: yesAtoms, 2023
An atom confined in an optical dipole trap is a promising candidate for a qubit. Analyzing the temporal response of such trapped atoms enables us to estimate the speed at which quantum computers operate.
S. Baral   +4 more
doaj   +1 more source

Sulfur vacancy-confined Co-Mo sites in MoS<sub>2</sub> for high-efficiency CO<sub>2</sub> hydrogenation to formate. [PDF]

open access: yesNat Commun
CO2 hydrogenation to formate is a significant process for converting greenhouse gas to high-value chemicals. MoS2 catalysts are emerging as low-cost candidates for this reaction, but their performance is constrained by the challenge of generating ...
Wang Z   +12 more
europepmc   +2 more sources

Two−dimensional nanomaterials confined single atoms: New opportunities for environmental remediation

open access: yesNano Materials Science, 2023
Two−dimensional (2D) supports confined single−atom catalysts (2D SACs) with unique geometric and electronic structures have been attractive candidates in different catalytic applications, such as energy conversion and storage, value−added chemical ...
Yu Yin   +6 more
doaj   +1 more source

Universal energy-dependent pseudopotential for the two-body problem of confined ultracold atoms

open access: yesPhysical Review Research, 2022
The two-body scattering amplitude and energy spectrum of confined ultracold atoms are of fundamental importance for both theoretical and experimental studies of ultracold-atom physics.
Da-Wu Xiao, Ren Zhang, Peng Zhang
doaj   +1 more source

Prospects for single-photon sideband cooling of optically trapped neutral atoms

open access: yesPhysical Review Research, 2021
We propose a cooling scheme for realizing single-photon sideband cooling on particles trapped in a state-dependent optical potential. We develop a master rate equation from an ab initio model and find that in experimentally feasible conditions it is ...
F. Berto, E. Perego, L. Duca, C. Sias
doaj   +1 more source

Confining and compressing the atom [PDF]

open access: yesThe European Physical Journal D, 2020
Abstract A review of effects due to the confinement and compression of atoms is presented. It is argued that they provide new insights into the properties of atoms and, in particular, into their interactions with the microscopic environment.
openaire   +1 more source

Toy model of harmonic and sum frequency generation in 2D dielectric nanostructures

open access: yesScientific Reports, 2021
Optical nonlinearities of matter are often associated with the response of individual atoms. Here, using a toy oscillator model, we show that in the confined geometry of a two-dimensional dielectric nanoparticle a collective nonlinear response of the ...
Jie Xu, Vassili Savinov, Eric Plum
doaj   +1 more source

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